Method for qualitatively and quantitatively detecting torasemide illegally added in food and application

Abstract

The invention provides a method for qualitatively and quantitatively detecting torasemide illegally added into food and application. The method comprises the following steps: preparing a to-be-detected sample and a standard solution of torasemide; respectively measuring theto-be-detected sample and the standard solution by adopting a high performance liquid chromatography-tandem mass spectrometer; recording the chromatographic retention time of each compound in the food sample and the standard solution, taking the percentage relative to the strongest ion abundance as the relative abundance of a qualitative ion pair, and recording the relative ion abundance of corresponding components in the to-be-detected sample and the standard solution with equivalent concentration; and when a chromatographic peak consistent with the chromatographic peak retention time of the torasemide standard substance is detected in the sample to be detected, determining that the corresponding compound and the content are detected in the sample to be detected. The detection method disclosed by the invention is simple, convenient and rapid in pretreatment, strong in specificity and high in sensitivity, can be used for simultaneously carrying out qualitative and quantitative analysis on the torasemide in foods such as tablet candies, biscuits, drinks, oral liquid and tea drinks, and can be applied to screening illegal addition of the torasemide in food safety supervision.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows us to efficiently test if someone else adds an ingredient into their own drink that they don’t want beforehand. It uses powerful liquor chromatochromatic (LC) columns with specialized equipment to measure specific chemical compounds called torases. By analyzing these measurements we are able to determine whether this person was adding something wrong during production. These techniques have proven useful at various industries such as pharmaceuticals, biotechnology, cosmetic products, medical devices, etc., providing valuable insights on how pills were made without permission from others who took them out over time.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the accuracy and reliability of testing materials with reduced levels of certain substances called nutrients (such as nitrogen) found naturally within human body). While there has been some research on finding ways to prevent harmful effects caused by these compounds, current methods require samples from nonrepresentative sources like animals or humans themselves, leading to inconsistant data points over time.

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